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Manufacturer number:
GARANT Master Tap INOX machine tap HSS-E-PM 1/4-20
Article no.: 137857 1/4-20
Article code:
- Thread type: UNC
- Flank angle: 60
- Tool material: HSS E PM
- Standard: DIN 371
- Tolerance class: 2BX
Product details
Technical Data
| Series | Master Tap | |
| Thread size | 1/4-20 UNC | |
| Coating | TiAlN | |
| Thread type | UNC | |
| Flank angle | 60 degrees | |
| Tool material | HSS E PM | |
| Standard | DIN 371 | |
| Tolerance class | 2BX | |
| Taper lead form | C | |
| Helix angle | 45 degrees | |
| Shank | Plain shank with h9 | |
| Through-coolant | no | |
| Application for type of drilling | up to 2.5×D for blind holes | |
| Cutting direction | right-hand | |
| Thread pitch | 1.27 mm | |
| Threads per inch | 20 | |
| Thread ⌀ | 6.35 mm | |
| Overall length L | 80 mm | |
| Shank ⌀ Ds | 7 mm | |
| Shank square □ | 5.5 mm | |
| Tapping hole ⌀ | 5.1 mm | |
| Type of threading tool | Machine tap for dynamic machining | |
| Number of clamping slots | 3 | |
| Colour ring | blue | |
| Number of cutting edges Z | 3 | |
| Thread depth | 15.9 mm | |
| Type of product | Tap |
Identification numbers & Classifications
| Article number | 137857 1/4-20 | |
| EAN / GTIN | 4062406210069 | |
| Manufacturer number | 137857 1/4-20 |
Application Table
N
28
P
23
P
23
P
12
M
11
M
9
Description
Version:
High-performance tap, specially developed for good process reliability in stainless and acid-resistant steels and duplex materials. The 45° helix angle of the flutes facilitates chip formation especially in ductile austenitic CrNi steels.
- HSS-E-PM tool material for maximum wear resistance.
- The latest generation of TiAlN multi-layer coating.
- Parameterised flute geometry for optimum chip formation and rigidity.
Application:
For UNC uniform coarse threads ASME − B1.1.
Downloads & documents
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|
| Thread ⌀ | 6.35 | 6.35 | 6.35 |
| Shank | Plain shank with h9 | Plain shank with h9 | Plain shank with h9 |
| Shank square □ | 5.5 | 5.5 | 5.5 |
| Cutting direction | right-hand | right-hand | right-hand |
| Helix angle | 45 | 40 | 40 |
| Thread depth | 15.9 | 15.9 | 15.9 |
| Type of product | Tap | Tap | Tap |